4. Methodology
The limited room for improving any current method should not be a limiting factor. Any analyst should explore all the possible alternatives for improvement including alternatives implying replacing any current method by a completely different method.
The following approaches were considered in developing possible solution from which the preferred work method will be selected (Barnes, 1980 and Heizer and Render, 2004): Eliminate all unnecessary work, combine operations or elements, change the sequence of operations, and simplify the necessary operations.